Change behaviour of an animation - AN
First, create the initial animation using an approach like this:



Next, we take the output time and delay it by some amount using a Delay Node. This time is then used as the time for an Animate Vector node, the start vector will be a zero vector (No offset) and the end vector will be the offset vector. A list is then filled with this vector to match the objects' count. Finally, we set a certain list element to zero, this element corresponds to the object that will not move. Then the list is added to the vectors: